Relay.



PATENTEE JAN: 2, 1906.

C. L. GOODRUM. RELAY:

APPLICATION FILED NOV. 11,1905

aye/@592 1 1 w of the Uni-N 131 the eeunty o' fork, have v nt-.linproveinern ewng s spec:

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given eur1'ent,hesi(ies being J 1 .er objects will more fully appearnerein relay designed and sdspted fer 10119-SWit8l1l3011 ghntit Wil beenrlerstoed that theinvention maybe embodied in many other terms ofzipper-sates and is eeptihle of many other spplil'jutiens.

An embodiment of the invention ill-s trsted in the accompanyingdrawingssrhere- 111- Figure s view of an arranged ith eirenit ehsngingnerds ith my inventinn. is new ef the same. Fig. s

to he described. Thisridge or projectio 6 may be formed upon thepole-piece C in :1 v

suitehle manner, but preferably the Gilli of the pole-piece sent up andfinished oil in the shape ol" a wedge, shown. The other pole-piece l) issuitably seeured to the opposite end of the core A by screw (2 and isformed with a foot a, by means of which the device may be fastened tosuitable support,

and extend upward and over the top of the magnet-eon LOWitl'tl thepele-p ee C. 'fllns pole-piece 2) serves as a supper n eon- En-tentedJan. 2., 190's.

uit-ehanging' devices of ntly described. ef the magnet consists offishing formed with a notch etsl transversely, this be engaged by the Ithe pole pie-3e C. is 153 pivoted upon said ridge -tion. extends intoproximity to on of the pole-pieee l is thus completed and n S cnearmature obteined. upon the shoulder (Z of pole-piece two sets 0%eontact-springs F F, suitinsnlsted by Washers. Intermediate two sets ofcontact-springs is a third set of springs 'G, hesringnpon the extensionof the armature E througl'i the intermedistio i of insnlntin pegs f,thus maintaining the iervmrd end the armature normally in estedposition. The springs G are pro \V' ll contacts 51, which bear normallythe .o 'er set of contest-springs l3.

V the "rrnsture attracted by polei central set of springs G is1'f-1i1'36d movement el extension 8 oi the urine- Whieh beers againstthe pegs f, so to contact with the lower set of springs and maizecontest with the upper set.

The srnmtiu'e E is held in place upon its r means of pinsj", ofinsulatingnut- 21 se pins 2. '0 attached one to each the lower set ofcontent-springs and bear upon the armature E in notches 0 to need in 1bend of the arnxeture immediately over notch engaged by the transversehearingese pins under the action of the perform the louhle function ofmaindisplacement oi the armature upon its pivot. This mounting of thearmature, in eoinbirnu tion with its cooperating parts, is a veryimportant feature of my invention.

In order to prevent sticking of the armstnre l I provide strips oi, nonmagnetic metal, one shown :Ll] extending across the under side of theextension 0 of the armature and having its ends oent thereover, which isthus interposed between that portion oi the armature and pole-piece C.The outer strip 6 is placed ncross and over the pole-piece D,immediately under the operative end of ermsture E, and its ends bentunder in order to secure it tn the pole-piece.

part of the plate to cause actuation of said springs, saidswitch-springs serving to hold said plate on its pivot.

12. In a relay, the combination with a core of a coil thereon, a rearL-shaped pole-piece secured to the rear end of the core and extendinforwardly a distance along the top of the coi an L-shaped frontpole-piece secured to the front end of the core and extending rearwardlya distance to leave a non-magnetic gap between the pole-pieces, meanspassing through the core for securing the pole-pieces to the core, apivot edge at the end ofthe front pole-piece, -a plate of mag- ,neticmaterial pivoted on said edge along an intermediary line, the part ofsaid plate to the rear of said pivot forming an armature, the part ofsaid plate in front of said pivot forming an actuating lever, andcircuitc'hanging springs mounted at their rear ends on the rear poleieceand being connected at their front en 5 with the actuating-lever, saidsprings normally causing pressure against said lever to hold thearmature part away from the rear pole-piece, cnrrent ilow through saidcoil causing attraction of the armature part, whereby saidcircuit-changing springs are actuated.

13. In a relay, the combination with a hollow core, of a coil'thereon, arear L-shaped pole-piece secured to the rear end of the core andextending forwardly a distance along the top of thecoil, a frontL-shaped pole-piece. secured to the front end of the core and extendingrearwardly a distance along the top of the coil to leave a non-magneticgap between the ends of thepole-pieces, means passing through said coreconnecting said polepieces and removably securing them to the core, theendof the front pole-piece offering a pivot edge, a magnetic platepivoted on said edge at an intermediary line, the rear part of saidplate forming an armature, the

ont part of said plate forming an actuatinglever, and switchingmechanism mounted on the rear pole-piece and having connection with theactuating lever, said switching mechanism serving normally to depresssaid actuating-lever to retain the armature out of contact with the rearpole-piece, current-flow through said coil causing said armature to beattracted to complete the magnetic circuit through the pole-pieces andcausing switch- 'ing mechanism to be actuated, said switching mechanismserving also to retain said plate in position on said pivot edge.

' 14. In a relay, the combination with a hollowcore, of a coil thereon,an L-shaped rear pole-piece secured to-the rear end of the core andextending forwardly a distance along the top of the coil, a frontL-shaped poleiece secured to the front end of the core an extendingrearwardly a distance along the top of the coil, a screw passing throughsaid core adapted to removably hold said pole-pieces on said core, anon-magnetic gap between the ends of the polepieces, the end of thefront pole-piece being shaped to form a pivot edge, a plate of magneticmaterial pivoted at an in termediary line on said edge, the rear part ofsaid plate forming an armature and the front part thereof rorming anactuating-lever, and actuating and contact switch-springs mounted attheir rear ends on the rear pole-piece and extending forwardlytherefrom, the front end of the actuating-springs having connection withsaid actuatin lever and tending normally to depress sai lever to retainthe armature away from the rear polepiece and out of engagement with thecontact-springs, current-flow through said coil causing energiz'ation ofthe relay, whereby the armature is attracted toward the rear polc-piece,said actuating-lever being raised to carry the actuating-springs intoengagement with the contact-springs.

In testimony whereof I affix my signature I in presence of twowitnesses.

CHARLES LANE GOODRUh L Witnesses:

EDWARD E. CLEMENT, GEORGE L. MEADE.

